RUNWAY UNER WAY: A groundbreaking ceremony for construction of a $145 million fourth runway at Miami International Airport will be held at 11 a.m. Friday. Lauren Gail Stover, associate director for public affairs with the Miami-Dade Aviation Department, said the new Runway 8/26 represents the first new runway construction work since September 1987 when Runway 9R/27L was completed — the new runway will be 800-feet north of and parallel to 9R/27L. It will extend for 8,600 feet and increase capacity at Miami International by about 25%, Ms. Stover said. It is scheduled for a May 2003 completion.